According to many pop music historians and Beatles fans, the song "A Day In The Life" changed the course of music history. Here's a description of the day the song was born, taken from the Beatles YouTube page:
Recorded in January and February 1967, a large orchestra was assembled for the amazing additional flourishes and fills, although at first the 40 classically trained musicians struggled with the concept of what they were being asked to play. George Martin and Paul conducted the orchestra and helped to create a finished track that was more than just different, it was utterly unique. Starting from John’s beautiful song, the end result was something simply unbelievable.
The song itself has stood the test of time, and the recording session to create the video is absolutely extraordinary. Now, the footage has been restored, and you can see it in all of it's digitally remastered glory below.